Editing Amblyopsidae (section)

==Life history and behavior==
Cavefish breed only once a year, occupying{{clarify|date=December 2012}} about 10% of the population.<ref name="Helfman" /> Members of the family Amblyopsidae [[Oviparity|lay eggs]]. Uniquely among fish, the genus ''Amblyopsis'' brood their eggs in the [[gill]] chambers (somewhat like [[mouthbrooder]]s). Formerly it was incorrectly speculated that a similar brooding behavior existed in other members of this family, as well as the [[pirate perch]] (''Aphredoderus sayanus'').<ref name=Armbruster2016>{{cite journal | author=Armbruster, J.W. | author2=M.L. Niemiller | author3=P.B. Hart | name-list-style=amp | title=Morphological Evolution of the Cave-, Spring-, and Swampfishes of the Amblyopsidae (Percopsiformes) | journal=Copeia | year=2016 | volume=104 | issue=3 | pages=763–777 | doi=10.1643/ci-15-339| s2cid=53608365 }}</ref><ref>{{cite journal | last1=Fletcher | first1=D.E. | last2=Dakin | first2=E.E. | last3=Porter | first3=B.A. | last4=Avise | first4=J.C. | year=2004 | title=Spawning behavior and genetic parentage in the pirate perch (Aphredoderus sayanus), a fish with an enigmatic reproductive morphology | journal=Copeia | volume=2004 | issue=1 | pages=1–10 | doi=10.1643/ce-03-160r| s2cid=37827490 }}</ref> Cavefish protect their eggs for the longest period of any fish.<ref name="Helfman" />

A rare feature of this family is the forward placement of its [[cloaca]], under the head, anterior to the pelvic fins.<ref name=EoF /> This placement allows the females to place their eggs more precisely, and is present also in other species of the [[Percopsiformes]] order, such as the [[Aphredoderidae]]. They feed on shrimp, [[gammarus]], and arachnids that fall into the water, using vibrations and current changes to seek out their prey.